DE1511674A1 - Method and device for the continuous production of tubular packs - Google Patents

Description

KALLE AKTIENGESELLSCHAFT Our characters day BJj

K 1692 PP-Dr.P.-is 1, November 1 "

description
to register

KALLE AKTIENGESELLSCHAFT Wiesbaden-Biebrich

for a patent

Method and device for the continuous production of tubular packs

The application relates to a method and a device for the continuous production of tubular packs from a sheet of film that is thermoplastic on both surfaces. Such methods and devices are already known. In the known method, the continuous production of a hose from the follows ■ poly web the filling of the hose with a filling material and dividing it into individual tube packs.

Thus, a method of this type is known in which the film web, while it is being moved longitudinally, from the flat form to a so-called form shoulder

909835/0543

KALLE AKTIENGESELLSCHAFT Our sign day sheet

K 1692 PP-Dr.P.-is 1.11.1966 - «- ■

transferred into the tubular curved shape with overlapping edges and by welding the web edges Converted into a vertically hanging round hose. The hose is then evenly spaced with two cross locks, one on top of the other, namely welds, provided, severed between the two cross closures and in the above of the upper of the two cross closures lying tube part filled in a quantity of the filling material, this quantity and the distance at which the hose is provided with the double cross closures are dimensioned such that each between an upper cross lock and the subsequently executed lower cross lock the each time filled in amount of the product is included in the hose. This procedure is for many Purposes useful; but it has become more popular for the manufacture of tubular packs, in which the contents of pasty Texture and must therefore be pressed into the hose with a certain pressure when one wants to come to a process speed that is useful in practice, has proven to be disadvantageous for Part because the transverse welds cannot be made due to the pasty nature of the product, to another part, because the cross-connections due to the filling pressure do not match the desirable

Strength held together, to a still different 909835/0543

KALLE AKTIENGESELLSCHAFT

Our characters day sheet

K 1692 PP-Dr.P.-Is 1.11.1966 -Jr-

Partly because when using polien webs of greater thickness and rigidity, the packing does not leak could be achieved in a satisfactory manner.

It was an object of the present invention to remedy the above-mentioned deficiencies in the method of manufacture of tube packs containing pasty contents contain remedy. In the method according to the invention, the procedure described above is followed Way, but in contrast to this, the procedure is also such that the hose is gradually and more straightforwardly Moving from top to bottom from the flat to the tubular curved shape brings both of them Cross closures by gathering and tying the hose twice with interruption of the lengthways Movement of the film web produces that the filling material during the longitudinal movement of the Hose presses into the hose to the same extent as in the longitudinal movement of the film web new hose-shaped Filling space is created, and that one expediently the web edges during the interruption the leash-wise movement of the film web with one another welded.

While in the known method, the film web is deformed into a tube from the flat, flat shape

909835/0543

Our characters day, _ sheet

K 1692 PP-Dr.P.-is I.II.1966 - # -

immediately into a strongly curved one and very soon afterwards brings into the round tube shape, the bending of the film web takes place in the method of the present invention gradually. In particular, when the sheet of film is bent, the hose forms an open semicircular shape considerable distance of its longitudinal locomotion. Preferably, the distance that one is The film web can be put back into the semicircular shape until it is bent, at least twice its width, preferably at least four times. Under the "open semicircular" shape, everyone is during the transfer to understand the position of the film web temporarily assumed in the tubular shape, in which the film web so is bent so that the two edges of the film web at opposite points in the same direction point. The semicircular shape does not necessarily have to be circular, it can for example represent an elliptical bend or some other curved shape.

The bending of the film web is preferably carried out in such a way that it is temporarily in such an open one semicircular shape translates into an opening directed axis is greater than the diameter of the hose to be produced. As "directed towards the opening

909835/0543

Our sign day sheet

K 16Q2 PP-Dr.P.-is 1.11.1966 -Τ ·

Axis "is the line connecting the The middle between the two edges of the film web connects with the middle of the polien web. Appropriately, the essentially open semicircular shape temporarily formed when the polien web is transferred into the tubular shape designed as an open semicircle, which then makes the axis directed towards the opening about as large is like the sum of the diameter and the third part of the longitudinal seam overlap of the to be produced Hose.

When transferring the film web from the flat to the tubular curved shape, one moves in the process according to the invention, the film web in a substantially vertical direction from top to bottom. One moves preferably in such a way that the center of the film web during the transfer from the flat to the tubular curved shape leads on a straight path from top to bottom.

The two cross closures, through which in the course of the present process the upper closure of one Hose pack and the lower end of the pack produced in connection with this is made

909835/0543

_ Our Zaidwe day “. sheet

K 1692 PP-Dr.P.-Is 1.11.1966 - £ -

according to the invention In catfish known per se by gathering them together and tying the hose twice, but the longitudinal port movement of the Film web interrupted. The tying can be done by means of a cord or a metallic wire. The latter is the preferred embodiment of the tying in the method according to the invention. One denotes they mostly as clipping. While the two cross locks are being made, In becomes more well known Way the film web between the two cross closures at the same time severed.

To the extent that the film web is moved forward lengthways at regular intervals, a new hose-shaped one is created Filling space, and to the extent that this is created, the filling material becomes during the longitudinal movement the polienbahn pressed into the available filling space.

On the other hand, the welding of the edges of the film web required to form the tube is expediently carried out, when the hose is used to make the cross seals and to cut between the two Cross locks interrupts its longitudinal port movement.

909835/0543

Our sign day sheet

K 1692 PP-Dr.P.-is 1.11.1966 - ■? -

The method makes it possible to produce tube packs, their longitudinal seam and their cross closures be sealed in an impeccable manner with great reliability. So the procedure allows it according to of the present invention, inter alia, also gas-tight film webs in a satisfactory manner for tight tube packs to process. Gas-tight foil webs consist of several layers of different materials and are therefore of a certain rigidity, which makes their processing into gas-tight packs particularly difficult. In particular one uses a metallic foil web, mainly one, to produce gas-tight packs Aluminum foil web, which is covered on both surfaces with at least one layer of a plastic is. Such film webs can also be used without problems in the process according to the present invention Process gas-tight packaging. One embodiment of the method according to this invention accordingly exists in it, one d & ft one on both sides with a thermoplastic Layered metallic foil web used to manufacture the hose.

In the above-described method according to the In the invention, devices of any type can be used find out which ones are ready to do so during the implementation

908835/0543

K 1692 FpJÖ? 7FL ^a -1b l.ll. ^T ¥ 966 - ¹ T-

of the procedural steps that make up the procedure. As very beneficial however, the device described below has been used to carry out the method according to the invention proved, which represents a further object according to the invention. The device described below is shown in one embodiment in a schematic manner in the accompanying figure. To this will be referred to many times in the following.

Devices for the continuous production of a hose from a thermoplastic on both surfaces Polien orbits moving in the longitudinal direction are already known. They have a straight line of film web, a drawing mold and a welding device for producing the longitudinal hose seam. There are also some of them a stationary transport device for longitudinally moving the hose web to be deformed and one Closing and dividing device for dividing the hose formed into individual hose packs. the Draw form limits part of the path of the film web in such a way that it moves along its length is forced from the flat into the curved tubular shape. Occasionally, the drawing mold closes a cylindrical support, which when welding the longitudinal seam of the hose as a counter bearing for the

Welding device and also for the transport device 909835/0543

Our · Zaldien day sheet

K 1692 PP-Dr.P.-Is 1.11.1966 - * -

serves. The tube is also filled through the cylindrical support, often by means of a filling tube which goes into the cylindrical support. The device according to the present invention has the features described above, but is also characterized in that the drawing form is of such a shape and its arrangement for the film web straight guide is such that the path of the film web within which its folding from the flat in the curved hose-like shape takes place, runs from top to bottom, and that the closing and separating device, as known per se, has two tying devices and a separating device acting between the two tying devices.

In the embodiment of the device shown in the figure; According to the invention, 1 denotes the machine frame to which some of the individual parts of the device are attached. The film web from which the tube packs are made rests in the form of a film web roll 2 in a holder. Before) the Holle 2, the film web is continuously removed during operation of the device. Since the longitudinal movement of the roller conveyor in the part of the device, in xvelchem the longitudinal seam ver welding and the binding

909835/0543

BATH ORIGINAL

Our daily newspaper

K 1692 FP-Dr .P.-is 1.11.1966 -

the film web, as well as the filling of the product is j interrupted at regular intervals, the film web first runs over a rocker 20 to enable the transition of the film web movement from the continuous to the discontinuous type. The film web then runs over two pulleys 21 to the pulley 13. This is the film web feeder of the device shown. In the context of the present description, a "film web feeder" is to be understood as that part of the device via which the film web is p-fed for the last time in a straight position before it is converted into the rounded tubular shape. The drawing mold is located under the sheet feeder, with the help of which the sheet is transferred from the flat to the rounded shape. The drawing fora 3 is followed by a cylindrical support 4. It serves as a joint bearing for the sleeper device 5 _} with the help of which the overlapped edges of the film web were welded to form the Lmvseam of the hose. The cylindrical support also serves as a counter-bearing for the transport device I ^ with the aid of which the hose is moved forward in the longitudinal direction of the film web ν -, -. The tying and separating device 6 ″ is located below the cylindrical support. This is activated with the aid of the drive 7. The hose is filled by the

909835/0543

ßAD ORIGINAL

Our signs

FP-Dr.P.-is I,

Our sign day sheet

K I692 FP-Dr.P.-is I.II.1966 - ü

Downpipe 8, which extends into the cylindrical support 4, preferably passes through the cylindrical support and protrudes a short distance at its lower end. The pasty filling material is pressed with the pump 12 into the supply line 11 and pressed in rhythm with the forward movement of the hose and in a correspondingly measured amount through the filling pipe 8 into the hose moved forward by the transport device I ^. The movement mechanism 7 of the binding and separating device, the transport device I ² J. the welding device 5 and the metering pump 12 are controlled in a manner known per se and not explained and illustrated here in such a way that the dosing pump 12 is in operation while the transport device 1 * 1 moves the hose forward and that the binding and separating device 6 and the welding device 5 come into action while the transport device Ik is at a standstill.

The drawing mold is preferably of such a shape and its arrangement in relation to the film web feeder is preferred such that the part of the device in which when folding the film web from the flat to the curved tubular shape, the folding of which from flat to open semicircular shape happened, at least six times that is long as the outside diameter of the cylindrical support. In the embodiment shown in the figure 909835/0543

Our Zaldien day sheet

K 1692 FP-Dr .P.-Is 1.11.1966 - Ti

has the draw mold 3 in its upper part 3a, through which the film web enters the draw mold 3, one after the other semicircular shape open to the left. The film web is consequently forced into a semicircular shape open to the left when entering the drawing mold 3. at Such an embodiment of the drawing form is according to the above the distance between the upper edge 3a of the drawing mold and the film web feeder 13 is preferably at least six times as large as the diameter of the cylindrical support 4, ζ .B. fifteen or twenty times that.

The drawing die 3 has, in known manner, a curved wall 18 which serves to trap the web of film and connects to the cylindrical support ¹ J with an annular cross-section, whose inner diameter is slightly larger than the outer diameter of the cylindrical support. Such a curved wall that captures the film web has proven to be very useful as a drawing form. So that the film web does not curl up or wrinkles when it is caught in the curved wall, guide elements are assigned to the curved capture wall, which guide elements place the edges of the film web against the capture wall. The embodiment of the drawing nozzle shown in the figure is very practical, in which the inlet wall 18 and a second wall 19 909835/0543, which is also known per se and arranged parallel thereto, is very practical

Our Ztldien day sheet

K 1692 PP-Dr.P.-is 1.11.1966 - * 3

delimit a curved slot.

The lower end of the drawing mold 3 leads over to the cylindrical support 4. Since the capture wall 18 encloses the film web during deformation, while the cylindrical support k is enclosed by the film web, the inside diameter of the capture wall 18 at the lower end of the drawing mold must be slightly larger than the outside diameter of the cylindrical support 4, namely at least twice Thickness of the film to be processed. In practice, the difference is generous, and expediently so that films of different thicknesses can be processed with one and the same drawing die. Normally, however, the difference _t 1 is not more than 2 mm, so that normally an annular passage no more than 1 mm wide is created between the lower end of the drawing die and the upper end of the cylindrical support. It has also proven to be practical to attach a shaped ring 10 to the upper part of the cylindrical support, which ring surrounds the cylindrical support at a distance of preferably no more than 1 mm.

The embodiment shown in the figure also shows the preferred arrangement in which the film web feeder 13, drawing mold 3.- cylindrical support h and

909835/0543

Our · ZaMm day sheet

K 1692 FP-Dr .P.-Is 1.11.1966 - irt -

1*

Welding device 5 of the center of the film web a distance is prescribed, which runs vertically from top to bottom.

Advantageously, the filling pipe 8 is sufficient, as already executed a short distance beyond the lower end of the cylindrical support 4 and ends about three to ten centimeters above the binding device. About that

moreover, it is desirable that the upper end of the support 4 remains open, i.e. with that surrounding the device Airspace is in unhindered communication. This connection can, if it is the design of the device makes necessary to be brought about that the upper part of the cylindrical support tube in the cylindrical wall contains an opening. The feed line 11, which goes from the metering pump to the filling pipe 8 leads, extends through the still open side of the still t incomplete to the tube in erectile sheet the inside of the curve formed. The lower end 9 of the inner die wall 19 is located above

the point in which the connection between the pump and filling tube 8 into the interior of the film web rounding reaches in.

909835/0543

Our sign

FP-Dr.P.-is 1.

IS

Our «sign day sheet

K 1692 FP-Dr.P.-is 1.11.1966 - ί $

The closing and separating device 6 has an upper gathering and binding device 15, a lower one Gathering and binding device 16 and a separating device 17. Such combined gathering, tying and separating devices are known per se, so that there is no need for a more detailed explanation here. Preferably the binding devices represent so-called clipping devices, and such devices are per se

i already known. The binding and separating device ^

is arranged stationary and is used according to the invention not to advance the web of film. According to the invention, a transport device 14 is provided for this purpose, which, with the support 4 as a counter bearing, is responsible for the transport of the film web. The transport device can be an endlessly revolving conveyor belt, of which at least two are expediently provided are. For the sake of simplicity, only a single such conveyor belt is shown in the figure. as Means of transport can also be provided with rollers be.

The measures aimed for welding the tube longitudinal seam Schweißvorrichtunp can be a constant heated or a pulse-heated welding device, if the coming to use film material that allows

909835/0543

Our · Ζ · Ι * βπ day sheet

K I692 FP-Dr, P.-is i.11.1966 - fc &

1fr

it can also be a high-frequency welding device. Such welding devices are known per se, so that there is no need for a more detailed description here. The same applies to the metering filling devices, and pumps in the form of piston pumps and screw pumps are also known for this purpose. However, it is noteworthy that it has proven advantageous to use such a pump of a type known per se which generates a back suction at the end of each metering filling stroke. Such pumps have hitherto been used where there was a risk that the filling quantity could be metered irregularly as the filling material continued to flow. Since it in the case of the present invention is the manufacture of tube packages with pasty filling material, wherein thus a continued flowing of the filling material is not expected due to its pasty texture, it is noteworthy that the application is a pump with a snuff yet vcn advantage , which manifests itself in the fact that when the hose packs are set, the packs burst much less frequently than when using metering pumps, which cannot generate the above-mentioned back suction.

9 0 9 8 3 5/0543

Our · sign day sheet

_{v 1692} PP-Dr.P.-is 1.11.1966 - IT

With the device according to the present invention it is possible for the first time to be gas-tight with great reliability Produce packaging whose packaging material is a film that has a certain rigidity having. This applies in particular to tubular packs made from an aluminum foil which is covered on both sides with a thermoplastic plastic coating is provided. Packs made with such material, which are called pasty filling material containing a meat or sausage mass can be stored for a very long time when refrigerated. It was so far it is not possible to produce fully machine storable sausage packs from such a film web.

909835/054 3

Claims (1)

Our · Zridtan To ₈ Matt K 1692 PP-Dr.P.-is 1.11.1966 Claims 1. A method of continuously manufacturing a tube from one on both surfaces thermoplastic poly sheet, then pulling the tube with a pasty filling material and dividing it into individual tube packs, in which the Polienbahn with longitudinal port movement from the flat in the tubular curved shape with overlapping Edges transferred by welding the web edges into a vertically hanging round tube converts, provides it at even intervals with two closely successive cross locks and cut between the two cross locks and in the one above the top of the two cross locks lying hose part presses in an amount of the pasty filling material, this amount and the distances in which the hose is provided with the double cross closures, are dimensioned so that between each one the upper transverse seal and the subsequently executed lower transverse seal the amount pressed in each time of the pasty filling material is included in the hose, characterized in that the hose is gradually and with straight port movement from top to bottom at the bottom from the flat to the tubular bent shape 909835/054 3 Us β ·· «^» icf-en r _CI g B | _at | K 1692 FP-Dr.P.-is 1.11.1966 - # 9 brings the two cross closures by gathering and tying the hose twice in the event of an interruption the longitudinal port movement of the Polienbahn and the filling material during the longitudinal port movement of the Hose presses into the hose to the same extent as in the longitudinal port movement of the Polienbahn newer tubular filling space is created, and that one the web edges expediently with one another during the interruption of the longitudinal port movement of the polar web welded. 2. The method according to claim 1, characterized in that the Polienbahn to a distance that is at least three times as long as its width, moved from top to bottom, if you move them when transferring from the flat to the tubular: curved shape of the temporarily transferred to the open semicircular shape. 3. The method according to claim 1 or 2, characterized in that the film web when transferring temporarily transferred from flat to tubular curved shape into such an open semicircular shape, whose axis directed towards the opening is larger than the diameter of the chain to be produced. 909835/0543 Our · sign day sheet K 1692 FP-Dr.P.-is 1.11.1966 - ^. Method according to claim 3, characterized in that that the axis directed towards the opening of the temporarily formed open semicircular shape is so large is like the sum of the diameter and the third part of the longitudinal seam overlap of the hose to be produced . 5 · The method according to claim 1 to 4, characterized in that the center of the pile path during the transfer from the flat to the tubular curved shape on a straight path from top to bottom leads. 6. The method according to claim 1 to 5, characterized in that one in the formation of the cross closures ties with metal wire clips. 7. The method according to claim 1 to 6, characterized in that a metallic film web provided on both sides with a thermoplastic layer is used for producing the hose. 8. Device with a film web feeder, a drawing mold, a welding device and a stationary transport device for continuous ■ 909835/054 3 Unier · character tag sheet _ι692 PP-Dr.P.-is 1.11.1966 - M ■ π Making a tube from one on both surfaces thermoplastic pollen web moved in the longitudinal direction, a filling device for the subsequent Pulling the hose with a pasty product and a closing and separating device for dividing into individual tube packs, in which the drawing die part of the path of the film web is limited in such a way that it moves from the J * planes forced into the curved tubular shape is, in which, furthermore, a cylindrical support adjoins the drawing mold, which is used when welding the longitudinal seam of the hose as a counter bearing for the welding device and also serves for the transport device and through which the hose is filled, and which furthermore the filling device with a filling tube goes into the cylindrical support, characterized in that that the drawing mold (3) of such a shape and its arrangement to the film web feeder (13) is such that the φ Distance of the film web within which it is folded over from the flat to the curved tubular shape takes place, runs from top to bottom, and that the. Closing and separating device (6), as known per se, two binding devices (15, 16) and a separating device (17) acting between the two binding devices having. 909835/0543 Our Ztldien day sheet K 1692 PP-Dr.P.-Is 1.11.1966 ~;! £ 9. Device according to claim 8, characterized in that the thermoforming mold (3) of such a shape and their arrangement is such to Poli web feeder (13), that the part of the device, in which, when folding the web of film from the flat into the bent tubular shape takes place their folding from the flat to the open semi-circular shape, at least six times as long as the outer diameter of the cylindrical support 10. Apparatus according to claim 8 or 9, characterized gekt- ₄ .nzei ^ t that the drawing die (3) has a curved wall (18) which serves to capture the Polienbahn and to the cylindrical support (4) with a circular cross-section of an inner diameter that is slightly larger than the outer diameter of the cylindrical support , and is widened towards the Polienbahnzufringer (13) to a round shape with a cross section, the half inner circumference of which is larger than the entire outer circumference of the cylindrical support, the last-mentioned cross-section the capture wall (18) of the drawing mold (3) from the Polienbahngeradführung (13) has a distance which is at least six times as large as the outer circumference of the cylindrical support (4). 909835/0 543 Uni »r» sign tag sheet K 1692 FP-Dr.P.-Ib 1.11.1966 - 11. The device according to claim 8 to 10, characterized in that a vertical path piece is prescribed by the film web feeder (13), drawing form (3), cylindrical support (4) and welding device (5) of the film web center. 12. The device according to claim 8 in combination with to claims 9 »10 and 11, characterized in that J ^ forms the thermoforming mold (3) one of the Einfangwand (18) and parallel to the second wall (19) limited overall krümten slot. 13. Device according to claim 8 to 12, characterized in that a cylindrical shaped ring (10) surrounds the cylindrical support (4) in its upper part. ' 1ή. Device according to Claims 8 to 13, characterized in that the support tube is open at the top. 15. The device according to claim 12 to 14, characterized in that the second wall (19) parallel to the catching wall (18) ends above the filling material feed (11) ' 9) . KALLE AKTIENGESELLSCHAFT f. ;
909835/0543 Blank page